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Finding the Third Proportional to 620,644,518 and 929,256,543

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Solution

The third proportional to 620,644,518 and 929,256,543 is: 1,391,324,176.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,644,518 : 929,256,543 = 929,256,543 : x
  2. Step 2: Convert to fraction form
    620,644,518/929,256,543 = 929,256,543/x
  3. Step 3: Cross multiply
    620,644,518x = 929,256,543 × 929,256,543
  4. Step 4: Simplify right side
    620,644,518x = 863,517,722,708,310,912
  5. Step 5: Solve for x
    x = 863,517,722,708,310,912/620,644,518
  6. Step 6: Final answer
    x = 1,391,324,176.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.